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[image]Enceladus "Cold Geyser" Model - NASA/JPL/Space Science Institute
As Saturn's active moon Enceladus continues to spew icy particles into space, scientists struggle to understand the mechanics of what is going on beneath the fractured south polar terrain. This graphic illustrates key aspects of the model proposed by the Cassini imaging science team in a paper published in the journal Science on March 10, 2006. The model shows how proposed underground reservoirs of pressurized liquid water above 273 degrees Kelvin (0 degrees Celsius) could fuel geysers that send...
Keywords: What -- Moon; What -- Enceladus; What -- Polar; What -- Cassini; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 41
[image]Hubble Views Colossal Polar Cyclone on Mars - NASA
[left]: Here is the discovery image of the Martian polar storm as seen in blue light (410 nm). The storm is located near 65 deg. N latitude and 85 deg. W longitude, and is more than 1000 miles (1600 km) across. The residual north polar water ice cap is at the top of the image. A belt of clouds like that seen in previous telescopic observations during this Martian season can also be seen in the planet's equatorial regions and northern mid-latitudes, as well as in the southern polar regions...
Keywords: What -- Discovery; What -- Polar; What -- Hubble Space Telescope (HST); What -- Camera 2; What -- Mars
Downloads: 12
[image]SRTM Colored Height and Shaded Relief: Laguna Mellquina, Andes Mountains, Argentina - NASA/JPL/NIMA
This depiction of an area south of San Martin de Los Andes, Argentina, is the first Shuttle Radar Topography Mission (SRTM) view of the Andes Mountains, the tallest mountain chain in the western hemisphere. This particular site does not include the higher Andes peaks, but it does include steep-sided valleys and other distinctive landforms carved by Pleistocene glaciers. Elevations here range from about 700 to 2,440 meters(2,300 to 8,000 feet)...
Keywords: What -- Shuttle Radar Topography Mission; What -- SRTM; What -- Space Shuttle Orbiter; What -- Endeavour; What -- Spaceborne Imaging Radar; What -- Earth; What -- Enterprise; Where -- Argentina; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington
Downloads: 53
[movies]Burns Cliff' in Color Stereo - NASA/JPL/Cornell
Burns Cliff' in Color Stereo (QTVR) The panoramic camera on NASA's Mars Exploration Rover Opportunity captured a sweeping image of "Burns Cliff" after driving right to the base of this southeastern portion of the inner wall of "Endurance Crater" in November 2004. This view is a color stereo anaglyph, offering a three-dimensionsal quality when seen properly through red/blue glasses. It incorporates imagery released previously (see PIA07110)...
Keywords: What -- STEREO A; What -- Panoramic Camera; What -- Mars Exploration Rover (MER); What -- Opportunity; What -- Crater; What -- STEREO
Downloads: 68
[movies]Zooming In On Enceladus (Movie) - NASA/JPL/Space Science Institute
Quick Time Movie of Cassini swooping past Saturn?s icy moon Enceladus As it swooped past the south pole of Saturn's moon Enceladus on July 14, 2005, Cassini acquired increasingly high-resolution views of this puzzling ice world. These views have been combined into this exciting movie sequence. The movie provides a stunning, up-close look at what is surely one of the youngest surfaces in the Saturn system...
Keywords: What -- Cassini; What -- Moon; What -- Enceladus; What -- Saturn; What -- Polar; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 103
[image]SRTM Perspective View with Landsat Overlay: Costa Rica Coastal Plain - NASA/JPL/NIMA/USGS
This perspective view shows the northern coastal plain of Costa Rica with the Cordillera Central, composed of a number of active and dormant volcanoes, rising in the background. This view looks toward the south over the Rio San Juan, which marks the boundary between Costa Rica and Nicaragua. The smaller river joining Rio San Juan in the center of the image is Rio Sarapiqui, which is navigable upstream as far inland as Puerto Viejo (Old Port) de Sarapiqu at the mountain's base...
Keywords: What -- Shuttle Radar Topography Mission; What -- SRTM; What -- Landsat 7; What -- Earth; What -- Space Shuttle Orbiter; What -- Endeavour; What -- Spaceborne Imaging Radar; What -- Enterprise; What -- Landsat; Where -- Costa Rica; Where -- South Dakota; Where -- San Juan; Where -- Nicaragua; Where -- United States of America; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington
Downloads: 61
[image]Neptune - Great Dark Spot, Scooter, Dark Spot 2 - NASA
This photograph of Neptune was reconstructed from two images taken by Voyager 2's narrow-angle camera, through the green and clear filters. The image shows three of the features that Voyager 2 has been photographing during recent weeks. At the north (top) is the Great Dark Spot, accompanied by bright, white clouds that undergo rapid changes in appearance. To the south of the Great Dark Spot is the bright feature that Voyager scientists have nicknamed 'Scooter'...
Keywords: What -- Neptune; What -- Voyager 2; What -- SPOT 2; What -- Voyager; Where -- Jet Propulsion Laboratory (JPL)
Downloads: 7
[image]Mars Reconnaissance Orbiter, Front View (Artist's Concept) - NASA/JPL
This artist's concept of NASA's Mars Reconnaissance Orbiter features the spacecraft's main bus facing down, toward the red planet. The large silver circular feature above the spacecraft bus is the high-gain antenna, the spacecraft's main means of communicating with Earth. The long, thin pole behind the bus is the antenna for the Shallow Subsurface Radar instrument (SHARAD). Seeking liquid or frozen water, this instrument will probe the subsurface using radar waves at frequencies of 15 to 25 mega...
Keywords: What -- Mars; What -- High Resolution Imaging Science Experiment (HiRISE); What -- Earth; What -- Shallow Subsurface Radar; What -- SHARAD; What -- Electra; What -- Imager; What -- CTX
Downloads: 9
[image]Fretted Terrain - NASA/JPL/Malin Space Science Systems
20 October 2004 This red wide angle Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a portion of the fretted terrain north of eastern Arabia Terra. As described earlier this month in "," the fretted terrains of Mars are the broken-up, blocky areas where the heavily cratered martian highlands transition to the lightly-cratered, lower elevation, northern plains. The landforms in the top half of the picture shown here comprise a portion of the fretted terrain...
Keywords: What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Mars; What -- Terra
Downloads: 8
[image]Superimposed Rover on Rim of Victoria Crater - NASA/JPL-Solar System Visualization Team
This image superimposes an artist's concept of the Mars Exploration Rover Opportunity on the rim of Victoria Crater. It is done to give a sense of scale.
Keywords: What -- Mars Exploration Rover (MER); What -- Opportunity; What -- Crater; Where -- Victoria
Downloads: 6
[image]Space Radar Image of Sakura-Jima Volcano, Japan - NASA
Space Radar Image of Sakura-Jima Volcano, Japan
Keywords: What -- Sakura; Where -- Japan
Downloads: 6
[image]Phoenix Lander on Mars - NASA/JPL/UA/Lockheed Martin
NASA's Phoenix Mars Lander monitors the atmosphere overhead and reaches out to the soil below in this artist's depiction of the spacecraft fully deployed on the surface of Mars. Phoenix has been assembled and tested for launch in August 2007 from Cape Canaveral Air Force Station, Fla., and for landing in May or June 2008 on an arctic plain of far-northern Mars. The mission responds to evidence returned from NASA's Mars Odyssey orbiter in 2002 indicating that most high-latitude areas on Mars have...
Keywords: What -- Phoenix Mars Lander; What -- Mars; What -- Phoenix; What -- Beam; What -- Planck; Where -- Arizona; Where -- Jet Propulsion Laboratory (JPL); Where -- Denver; Where -- Switzerland; Where -- Copenhagen; Where -- Denmark; Where -- Germany; Where -- California
Downloads: 11
[image]Malaspina Glacier, Alaska, Anaglyph with Landsat Overlay - NASA/JPL/NIMA
This anaglyph view of Malaspina Glacier in southeastern Alaska was created from a Landsat satellite image and an elevation model generated by the Shuttle Radar Topography Mission (SRTM). Malaspina Glacier is considered the classic example of a piedmont glacier. Piedmont glaciers occur where valley glaciers exit a mountain range onto broad lowlands, are no longer laterally confined, and spread to become wide lobes...
Keywords: What -- Landsat 3; What -- Shuttle Radar Topography Mission; What -- SRTM; What -- Earth; What -- Space Shuttle Orbiter; What -- Endeavour; What -- Spaceborne Imaging Radar; What -- Enterprise; What -- Landsat; Where -- Alaska; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington
Downloads: 30
[image]Spectral mapping of landing site - NASA
The shapes of the spectra of surface materials can easily be measured from multispectral images. Measures of surface spectral properties can also be shown as false color overlain on an image to summarize spectral variations near the lander at a glance. The top image shows the region southeast of the lander in true color. In the bottom image of the same region, the strength of the kink in the spectrum at visible wavelengths (related to the abundance and particle size of weathered ferric iron mine...
Keywords: What -- Atmospheric Structure; What -- Mars; What -- Discovery; What -- Imager for Mars Pathfinder; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington; Where -- Arizona; Where -- California
Downloads: 10
[image]Gullied Depression - NASA/JPL/Malin Space Science Systems
26 February 2006 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows gullies formed in the wall of a depression located on the floor of Rabe Crater west of the giant impact basin, Hellas Planitia. Gullies such as these are common features on Mars, but the process by which they are formed is not fully understood. The debate centers on the role and source of fluids in the genesis of these features...
Keywords: What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Mars; What -- Crater; What -- Genesis
Downloads: 16
[image]Tharsis Rise Graben - NASA/JPL/Arizona State University
(Released 22 May 2002) The Science This image is located in the northwestern portion of the Tharsis Rise at about 12 N and 125 W (235 E). What is immediately noticeable in this image is the series of linear features that are called graben. These features are associated with crustal extension which results in a series of up and down blocks of crust that run perpendicular to the direction of the extension...
Keywords: What -- Mars; What -- Earth
Downloads: 9
[movies]Enceladus Animation - NASA/JPL
Quick Time Movie for PIA03554 Enceladus Animation This animation shows the Cassini spacecraft approaching Saturn's icy moon Enceladus. It shows the highest resolution images obtained of the moon's surface. This is followed by a depiction of Saturn's magnetic field, which interacts with Enceladus' atmosphere and presumed plume coming from the south pole. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency...
Keywords: What -- Enceladus; What -- Cassini; What -- Moon; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 172
[image]Meteor Crater, AZ - NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team
The Barringer Meteorite Crater (also known as "Meteor Crater") is a gigantic hole in the middle of the arid sandstone of the Arizona desert. A rim of smashed and jumbled boulders, some of them the size of small houses, rises 50 m above the level of the surrounding plain. The crater itself is nearly a 1500 m wide, and 180 m deep. When Europeans first discovered the crater, the plain around it was covered with chunks of meteoritic iron - over 30 tons of it, scattered over an area 12 to 15 km in di...
Keywords: What -- Crater; What -- ASTER; What -- Advanced Spaceborne Thermal Emission and Reflection Radiometer; What -- Terra; What -- Earth; What -- Enterprise; Where -- Arizona; Where -- Jet Propulsion Laboratory (JPL); Where -- California
Downloads: 73
[image]Eruption at Tvashtar Catena on Io - NASA
This pair of images taken by NASA's Galileo spacecraft captures a dynamic eruption at Tvashtar Catena, a chain of volcanic bowls on Jupiter's moon Io. They show a change in the location of hot lava over a period of a few months in 1999 and early 2000. The image on the left uses data obtained on Nov. 26 and July 3, 1999, at resolutions of 183 meters (600 feet) and 1.3 kilometers (0.8 miles) per pixel, respectively...
Keywords: What -- Galileo; What -- Moon; What -- Io; What -- Earth; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 34
[image]Sydney, Australia - NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team
This image was acquired on October 12, 2002 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet...
Keywords: What -- Advanced Spaceborne Thermal Emission and Reflection Radiometer; What -- ASTER; What -- Terra; What -- Earth; What -- Enterprise; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Sydney; Where -- Australia
Downloads: 18
[image]Mosaic of Saturn's rings - NASA
This detailed mosaic of the underside of the Cassini Division was obtained by Voyager 1 with a resolution of about 10 kilometers. The classical Cassini Division appears here to the right of center as five bright rings with substantial blacks gap on either side. The inner edge of the A Ring, to the left of center, is the brightest part of this image. The fine-scale wave structure in this region has been interpreted as being the result of gravitational density waves.
Keywords: What -- Cassini; What -- Voyager 1
Downloads: 97
[image]SRTM Stereo Pair: Haro and Kas Hills, India - NASA/JPL/NIMA
On January 26, 2001 the Kachchh region in western India suffered the most deadly earthquake in India's history. This stereoscopic view of landforms northeast of the city of Bhuj depicts geologic structures that are of interest in the study the tectonic processes that may have led to that earthquake. However, preliminary field studies indicate that these structures are composed of Mesozoic rocks that are overlain by younger rocks showing little deformation...
Keywords: What -- Landsat 7; What -- Shuttle Radar Topography Mission; What -- SRTM; What -- Earth; What -- Space Shuttle Orbiter; What -- Endeavour; What -- Spaceborne Imaging Radar; What -- Enterprise; What -- Landsat; What -- STEREO; Where -- South Dakota; Where -- United States of America; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington
Downloads: 83
[image]Mira Soars Through the Sky - NASA/JPL-Caltech
New ultraviolet images from NASA's Galaxy Evolution Explorer shows a speeding star that is leaving an enormous trail of "seeds" for new solar systems. The star, named Mira (pronounced my-rah) after the latin word for "wonderful," is shedding material that will be recycled into new stars, planets and possibly even life as it hurls through our galaxy. In figure 1, the upper panel shows Mira's full, comet-like tail as seen only in shorter, or "far" ultraviolet wavelengths, while the lower panel is ...
Keywords: What -- Galaxy Evolution Explorer; What -- Explorer; What -- MIRA; What -- Sun; What -- Mars; What -- Earth; What -- Jupiter; What -- Constellation; What -- Cetus
Downloads: 12
[image]Stratified Arctic Clouds - NASA
Stratus clouds are common in the Arctic during the summer months, and are important modulators of the arctic climate. This image pair from the Multi-angle Imaging SpectroRadiometer (MISR) was acquired on August 23, 2000, and shows a region of stratified clouds situated near the boundary of the permanent polar ice pack to the north of the Chukchi and East Siberian Seas. At top is a natural-color view captured by MISR's vertical-viewing (nadir) camera...
Keywords: What -- MISR; What -- Polar; What -- STEREO A; What -- Terra; What -- STEREO; What -- Sun; What -- Earth; Where -- East Siberian Sea; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington; Where -- Goddard Space Flight Center (GSFC); Where -- California
Downloads: 6
[image]The Flows of Olympus - NASA/JPL/Malin Space Science Systems
13 October 2004 This August 2004 Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows lava flows and a collapsed lava tube on the upper southwest flank of Olympus Mons, one of the largest volcanoes ever known. The collapsed lava tube is the channel-like feature in the upper third of the image. All of the surfaces in this image are very heavily peppered by small meteor impact craters. While fairly young relative to much of the martian surface, the large volcanoes of Mars are still qui...
Keywords: What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Mars
Downloads: 7
[image]MOC 1000th Release! - NASA/JPL/Malin Space Science Systems
12 February 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the remains of two impact craters that were filled, buried, and then exhumed from within layered sedimentary rock in the martian crater, Gale. Wind erosion has sculpted tapered yardang ridges in the uppermost rock layers exposed at this location. This is the 1000th captioned image release from the MGS MOC team. The first release occurred in July 1997, when the spacecraft was still speeding toward the red plane...
Keywords: What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Mars; What -- Crater
Downloads: 10
[image]Dark Terrain - NASA/JPL
Although most of the region observed by the Cassini radar instrument in the February close flyby of Titan is very different from the regions imaged in October, the area shown in this image appears quite similar. Running about 300 kilometers (186 miles) from top to bottom, the image shows a complex of bright hills and ridges surrounded by a dark plain. In radar imaging, large dark expanses are either relatively smooth, or absorb radio waves effectively, or both...
Keywords: What -- Cassini; What -- Titan; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington; Where -- United States of America
Downloads: 8
[image]Boulder Tracks - NASA/JPL/Malin Space Science Systems
15 July 2004 The arrows in this Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) picture point to three boulders that left trails behind them as they rolled down the lower parts of a meteor crater's wall. In two cases, the tracks can be resolved into a series of small depressions, indicating the variable shape of the boulder as it unevenly proceeded down the slope. These features are located near 18.4N, 120.1W...
Keywords: What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Mars
Downloads: 7
[image]Titan's Halo - NASA/JPL/Space Science Institute
With its thick, distended atmosphere, Titan's orange globe shines softly, encircled by a thin halo of purple light-scattering haze. Images taken using blue, green and red spectral filters were used to create this enhanced-color view; the color images were combined with an ultraviolet view that makes the high-altitude, detached layer of haze visible. The ultraviolet part of the composite image was given a purplish hue to match the bluish-purple color of the upper atmospheric haze seen in visible ...
Keywords: What -- Visible Light; What -- Cassini; What -- Titan; What -- Sun; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 9
[image]Hubble Space Telescope Resolves Volcanoes on Io - NASA
This picture is a composite of a black and white near infrared image of Jupiter and its satellite Io and a color image of Io at shorter wavelengths taken at almost the same time on March 5, 1994. These are the first images of a giant planet or its satellites taken by NASA's Hubble Space Telescope (HST) since the repair mission in December 1993. Io is too small for ground-based telescopes to see the surface details...
Keywords: What -- Jupiter; What -- Io; What -- Hubble Space Telescope (HST); What -- Voyager; What -- Discovery; What -- Camera 2; Where -- Jet Propulsion Laboratory (JPL)
Downloads: 8
[image]Four Views of Mars in Northern Summer - NASA
Four faces of Mars as seen on March 30, 1997 are presented in this montage of NASA Hubble Space Telescope images. Proceeding in the order upper-left, upper-right, lower-left, lower-right, Mars has rotated about ninety degrees between each successive time step. For example the Tharsis volcanoes, which are seen (between 7:30 and 9 o'clock positions) in mid-morning in the UPPER-RIGHT view, are seen near the late afternoon edge of the planet (about 3 o'clock position) in the lower-left image...
Keywords: What -- Mars; What -- Hubble Space Telescope (HST); What -- Ares Launch Vehicles; What -- Polar; What -- Viking; What -- Mariner 9
Downloads: 9
[image]Io - Volcano Loki and Loki Patera - NASA
The detailed structure near the volcano Loki is like nothing seen elsewhere on Io. When this Voyager 1 picture was taken, the main eruptive activity came from the lower left of the dark linear feature (perhaps a rift) in the center. Below is the "lava lake", a U-shaped dark area about 200 kilometers across. In this specially processed image, detail can be seen in the dark surface of this feature, possibly due to "icebergs" of solid sulfur in a liquid sulfur lake...
Keywords: What -- Io; What -- Voyager 1
Downloads: 33
[image]Orbiter Near Final Configuration - NASA/JPL/Lockheed Martin
NASA's Mars Reconnaissance Orbiter will be the largest spacecraft to orbit Mars, weighing 2,180 kilograms (4,796 pounds) at liftoff. This image from early January 2005 shows the spacecraft fitted with five of its six primary science instruments, both solar arrays and its high-gain antenna. The orbiter is undergoing environmental testing at Lockheed Martin Space Systems, Denver, to ensure its performance in simulated launch and space conditions...
Keywords: What -- Mars; Where -- Denver
Downloads: 7
[image]Opportunity Self-Portrait, Sols 322-323 - NASA/JPL/Cornell
NASA's Mars Exploration Rover Opportunity used its panoramic camera to take the images combined into this mosaic view of the rover. The downward-looking view omits the mast on which the camera is mounted. It shows Opportunity's solar panels to be relatively dust-free. The images were taken through the camera's 600-, 530- and 480-nanometer filters during Opportunity's 322nd and 323rd martian days, or sols (Dec...
Keywords: What -- Mars Exploration Rover (MER); What -- Opportunity; What -- Panoramic Camera
Downloads: 9
[image]Entering the Magnetic Bubble - NASA/JPL/Southwest Research Institute/Imperial College London
This graph illustrates the Cassini spacecraft's transition into Saturn's magnetosphere from an outer region called the magnetosheath. A magnetosphere is a magnetic envelope of charged particles that surrounds some planets, including Earth. In between it and a boundary called the bow shock -- where solar winds bend to avoid the magnetosphere -- is an area called the magnetosheath. These data (bottom panel) were taken by Cassini's plasma spectrometer, which measures the energy and electric charge ...
Keywords: What -- Cassini; What -- Earth; What -- Plasma Spectrometer; What -- Spectrometer; What -- Dual Technique Magnetometer; What -- Magnetometer; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 11
[image]Seasonal Air Temperatures Above Opportunity - NASA/JPL/Cornell/ASU/SSI
This graph shows the seasonal trend of air temperatures 100 meters (328 feet) above NASA's Mars Exploration Rover Opportunity from late summer (left) to mid-winter (right) of Mars' southern hemisphere. The temperatures were measured with the rover's miniature thermal emission spectrometer. The colors represent different times of day: purple for early morning, green for midday, red for late afternoon...
Keywords: What -- Mars Exploration Rover (MER); What -- Opportunity; What -- Mars; What -- Miniature Thermal Emission Spectrometer (Mini-TES); What -- Thermal Emission Spectrometer (Mini-TES); What -- Spectrometer; What -- Sun
Downloads: 7
[image]Complex Terrain - NASA/JPL
This complex area of hilly terrain and erosional channels is located atop Xanadu, the continent-sized region on Saturn's moon Titan. The image was captured by the Cassini Titan Radar Mapper on April 30, 2006. It shows details as small as 350 meters (1148 feet). Each side of the picture covers 200 kilometers (124 miles). Chains of hills or mountains are located near the bottom of the image, appearing bright on their north side (toward the top in this image)...
Keywords: What -- Moon; What -- Titan; What -- Cassini; What -- Radar Mapper; What -- Descent Imager; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington; Where -- United States of America
Downloads: 8
[image]A Shadowy Figure - NASA/JPL/Space Science Institute
The "flying saucer" in this image is the small moon Atlas (20 kilometers, 12 miles across), whose shadowy profile reveals its flattened shape. This image looks down onto the outer A ring, and through the Encke and Keeler gaps. Two distinct, thin strands in the F ring are visible here, silhouetted against the planet. Saturn's extended, high-altitude haze is seen near lower right. The image was taken in visible green light with the Cassini spacecraft narrow-angle camera on Aug...
Keywords: What -- Moon; What -- Atlas; What -- Cassini; What -- Sun; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 8
[image]Boulder 'Big Joe' And Surface Changes On Mars - NASA
This pair of pictures from Viking Lander 1 at Mars' Chryse Planitia shows the only unequivocal change in the Martian surface seen by either lander. Both images show the one-meter (3-foot) high boulder nicknamed 'Big Joe.' Just to the lower right of the rock (right photo) is a small-scale slump feature. The picture at left shows a smooth, dust-covered slope; in the picture at right the top surface layer can be seen to have slipped downslope...
Keywords: What -- Viking 1 Lander; What -- Mars
Downloads: 14
[image]The Prometheus Effect - NASA/JPL/Space Science Institute
This mosaic of 15 Cassini images of Saturn's F ring shows how the moon Prometheus creates a gore in the ring once every 14.7 hours, as it approaches and recedes from the F ring on its eccentric orbit. The individual images have been processed to make the ring appear as if it has been straightened, making it easier to see the ring's structure. The mosaic shows a region 147,000 kilometers (91,000 miles) along the ring (horizontal direction in the image); this represents about 60 degrees of longitu...
Keywords: What -- Cassini; What -- Moon; What -- Saturn; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 19
[image]Space Radar Image of Ruiz Volcano, Colombia - NASA
Space Radar Image of Ruiz Volcano, Colombia
Keywords: Where -- Colombia
Downloads: 18
[image]Defrosting Terrain - NASA/JPL/Malin Space Science Systems
9 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a south polar scene, covered by bright, seasonal, carbon dioxide frost. The dark patches are areas where the frost has begun to sublime away. : 80.0S, 334.0W : width: ~3 km (~1.9 mi) : upper left : Southern Spring
Keywords: What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Mars; What -- Polar
Downloads: 11
[image]Interpreted Lava Fountains on Io - NASA
This mosaic of images collected by NASA's Galileo spacecraft on Thanksgiving Day, November 25,1999 shows a fountain of lava spewing above the surface of Jupiter's moon Io. In the , the active lava was hot enough to cause what the camera team describes as "bleeding" in Galileo's camera, caused when the camera's detector is so overloaded by the brightness of the target that electrons spill down across the detector...
Keywords: What -- Galileo; What -- Moon; What -- Io; What -- Earth; What -- Mars; What -- Sun; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington; Where -- California
Downloads: 12
[image]Salt Lake City, Utah, Winter 2001 - NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team
The 2002 Winter Olympics are hosted by Salt Lake City at several venues within the city, in nearby cities, and within the adjacent Wasatch Mountains. This simulated natural color image presents a snowy, winter view of north central Utah that includes all of the Olympic sites. The image extends from Ogden in the north, to Provo in the south; and includes the snow-capped Wasatch Mountains and the eastern part of the Great Salt Lake...
Keywords: What -- Advanced Spaceborne Thermal Emission and Reflection Radiometer; What -- ASTER; What -- Terra; What -- Earth; What -- Enterprise; Where -- Salt Lake City; Where -- Utah; Where -- Great Salt Lake; Where -- Jet Propulsion Laboratory (JPL); Where -- California
Downloads: 13
[image]Indications of Subsurface Ice: Polygons on the Northern Plains - NASA/JPL/MSSS
Someone's kitchen floor? A stone patio?This picture actually does show a floor--the floor of an old impact crater on the northern plains of Mars. Each "tile" is somewhat larger than a football field. Polygonal patterns are familiar to Mars geologists because they are also common in arctic and antarctic environments on Earth. Typically, such polygons result from the stresses induced in frozen ground by the freeze-thaw cycles of subsurface ice...
Keywords: What -- Crater; What -- Mars; What -- Earth
Downloads: 6
[image]Painting on the Walls - NASA/JPL/Space Science Institute
During its closest flyby of Saturn's wrinkled, icy moon Enceladus, Cassini obtained multi-spectral images of its cratered terrain that have been put together to create this false-color view. To human eyes, Enceladus appears almost completely white, but false color reveals intriguing details. This view is a composite of images taken using filters sensitive to ultraviolet (centered at 338 nanometers), green (centered at 568 nanometers), and near-infrared (centered at 930 nanometers) light, and has...
Keywords: What -- Moon; What -- Enceladus; What -- Cassini; What -- Crater; What -- Saturn; What -- Sun; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 11
[image]Scarecrow - NASA/JPL-Caltech
The team developing NASA's Mars Science Laboratory calls this test rover "Scarecrow" because the vehicle does not include a computer brain. Mobility engineers use this test rover to evaluate mobility and suspension performance. The Mars Science Laboratory rover is in development for launch in 2009. JPL, a division of the California Institute of Technology, Pasadena, manages the mission for the NASA Science Mission Directorate, Washington.
Keywords: What -- Mars; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington
Downloads: 8
[image]Ius Chasma Fault - NASA/JPL/Malin Space Science Systems
MGS MOC Release No. MOC2-415, 8 July 2003 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a "text-book example" of an offset in layered rock caused by a fault. The offset is most easily seen near the upper right of the image. The martian crust is faulted, and the planet has probably experienced "earthquakes" (or, marsquakes) in the past. This scene is located on the floor of Ius Chasma near 7.8S, 80.6W...
Keywords: What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Mars
Downloads: 7
[image]Boulder Track - NASA/JPL/Malin Space Science Systems
MGS MOC Release No. MOC2-408, 1 July 2003 If a boulder rolls down a slope on an uninhabited planet, does it make a sound? While we do not know the sound made by a boulder rolling down a slope in the martian region of Gordii Dorsum, we do know that it made an impression. This full-resolution Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a series of depressions made on a dust-mantled slope as a boulder rolled down it, sometime in the recent past...
Keywords: What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Mars
Downloads: 7
[image]Yardangs and Exhumation - NASA/JPL/Malin Space Science Systems
MGS MOC Release No. MOC2-359, 13 May 2003 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the results of wind erosion of a thick deposit of fine-grained, cemented material. The ridges oriented roughly from upper left to lower right (northwest to southeast) are called yardangs. Similar features occur in some of Earth's desert regions. The flat surface with narrow, sinuous ridges at the top (north) end of the picture is interpreted to be an ancient lava plain that is being sl...
Keywords: What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Mars
Downloads: 7
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